PRODUCTS

Working Principle

The transmitter emits extremely narrow microwave pulses through a high‑frequency lens antenna. The time interval between emission and reception is directly proportional to the distance to the medium surface. An advanced microprocessor calculates the precise distance and converts it into level height.

The 80G series uses Frequency Modulated Continuous Wave (FMCW) technology – emitting continuous waves with linearly varying frequency. The difference between the reflected echo and the emitted signal is processed via Fast Fourier Transform (FFT), achieving high‑resolution ranging. This method offers strong signal processing even in complex echo environments, effectively suppressing false echoes and ensuring measurement continuity and accuracy.

Key Features

• Ultra‑high operating frequency – 80GHz (76–81GHz)
  – Narrowest beam angle: as low as 3° – energy is highly concentrated, drastically reducing false echoes from vessel walls, agitators, ladders, etc.
  – Shorter wavelength (approx. 3.75mm) provides excellent reflection on solids, small granules, and low‑dielectric media.

• Extreme temperature resistance
  – Process temperature range: –40°C up to +1100°C (ceramic‑sealed antenna models).
  – Ceramic antenna (alumina/corundum or silicon carbide) with melting point >2000°C prevents melting or thermal deformation.
  – Multi‑stage composite heat dissipation ensures stable operation even under intense thermal radiation.

• High precision & reliability
  – Measurement accuracy: ±1mm – suitable for demanding process control and trade settlement.
  – Blind zone: as low as 6–10 cm, ideal for small tanks or levels near the top.
  – Smart echo processing (EchoDiscovery) automatically filters interference from steam, foam, condensation, or dust.

• Strong anti‑interference & penetration
  – Unaffected by temperature, pressure, steam, dust, or vibrations.
  – 5GHz bandwidth ensures high resolution; excellent penetration through thick quartz glass windows.

• Compact & flexible installation
  – Compact antenna size for small‑diameter flanges or confined spaces.
  – Process connections: threaded (G1½, 1½ NPT) or flanged (≥DN50/2″).
  – Process pressure rating: –0.5 to 3 MPa (up to 16 MPa for standard models).

• Low maintenance & long service life
  – Non‑contact measurement – no moving parts, no wear, no media contamination.
  – Maintenance‑free operation reduces downtime and total cost of ownership.

• Advanced connectivity & digitalization
  – Outputs: 4–20mA/HART (two‑wire or four‑wire), RS485/Modbus RTU.
  – Bluetooth for wireless configuration and remote commissioning via mobile app.
  – Compatible with SCADA, DCS, and IoT platforms.

• Safety certifications
  – Explosion protection: Ex db IIC T6 Gb, Ex ia IIC T6 Ga, Ex tb IIIC, Ex ia IIIC – suitable for Zone 0/1 (gas) and Zone 20/21 (dust).
  – Ingress protection: IP66/IP67/IP68.
  – Compliant with ATEX, IECEx, and other international standards.

Technical Specifications

• Operating frequency: 76–81 GHz (80GHz typical)

• Measuring range: 0–120 m (options: 0–30/60/80 m)

• Accuracy: ±1 mm

• Blind zone: 6–10 cm

• Beam angle: ≥3° (as low as 3°)

• Process temperature range: –40°C to +1100°C (ultra‑high temperature model)

• Ambient temperature range: –40°C to +70°C

• Process pressure range: –0.5 to 3 MPa (up to 16 MPa for standard models)

• Power supply: 24V DC (two‑wire / four‑wire) or 220V AC

• Output signals: 4–20mA/HART (two‑wire / four‑wire), RS485/Modbus RTU

• Process connection: Thread (G1½, 1½ NPT) / Flange (≥DN50/2″)

• Antenna type: Lens antenna / Ceramic‑sealed high‑temperature antenna

• Antenna material: PTFE / PFA / Ceramic (alumina/corundum) / 316L stainless steel

• Enclosure material: Aluminum (single‑chamber / dual‑chamber) / Stainless steel

• Ingress protection: IP66 / IP67 / IP68

• Explosion protection: Ex db IIC T6 Gb, Ex ia IIC T6 Ga, Ex tb IIIC, Ex ia IIIC

• Communication protocols: HART, RS485/Modbus, Bluetooth

• Minimum dielectric constant: ≥1.5

• Display: LCD backlit display with keypad (optional)

Applications

The 80G Ultra‑High Temperature Radar Level Transmitter is ideal for extreme industrial environments:

• Metallurgy & steelmaking: Steel ladle level monitoring; molten steel, aluminum, copper; blast furnace burden level; steel slag; converter; tundish; crucible; launder systems; continuous casting mold.

• High‑temperature slurry & ore: High‑temperature ore conveyors; rotary kilns; cement kilns; sintering machines.

• Petrochemical & chemical: High‑temperature and high‑pressure reactors; coking units; coal tar tanks; asphalt storage; delayed coking units.

• Power generation: Boiler drums; desulfurization towers; ash hoppers; fuel oil storage.

• Metallurgical & mineral processing: Sinter plants; pelletizing plants; blast furnace coke and ore bins; high‑temperature ore bunkers.

• Special applications: High‑temperature acid/alkali media; high‑vacuum vessels; applications with thick steam, heavy dust, or strong crystal adhesion.

Why Choose the 80G Ultra‑High Temperature Radar Level Transmitter?

• Unmatched performance in extreme heat – Withstands process temperatures up to 1100°C through ceramic‑sealed antenna design and multi‑stage heat dissipation.

• Non‑contact, maintenance‑free operation – No moving parts, no wear, no media contamination. Dramatically reduces downtime and total cost of ownership.

• Reliable under harsh conditions – 80GHz high‑frequency signal penetrates thick steam, heavy dust, and crystal buildup with ease.

• Precise & stable – ±1mm accuracy and 3° ultra‑narrow beam angle ensure highly concentrated energy, avoiding false echoes.

• Simple installation & commissioning – Compact antenna design; Bluetooth wireless configuration for remote commissioning without opening the enclosure.

• Future‑ready digitalization – HART, RS485/Modbus, Bluetooth, and support for SCADA/DCS/IoT integration for Industry 4.0.